All names: GSC 09315-00008, TIC 352315023, TYC 9315-8-1, JL 36, Gaia DR2 6422160010963164160, EC 19563-7205, GEN# +6.20022036, UBV M 43547, uvby98 620022036, 2MASS J20015229-7157257, EC19563-7205, Gaia DR3 6422160010963164160
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 01 52.21 | 20 01 52.28 (0.02) | ||
| Declination | -71 57 25.17 | -71 57 25.66 (0.02) | ||
| Spectral type | sdB | sdB | ||
| Effective temperature | [K] | 23900.0 (1400) | ||
| log(g) | [cgs] | 5.13 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.65 (0.05) | 1.80 (0.03) | |
| Distance | [pc] | 605.29 (18) | 555.56 (9) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 20.671 (0.07) | 20.719 (0.02) | |
| Proper motion (declination) | [mas/yr] | -31.258 (0.09) | -31.57 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 12.81 | |||
| V magnitude | 12.95 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.28 (0.02) | 13.28 (0.02) | ||
| H magnitude | 13.38 (0.03) | 13.38 (0.03) | ||
| K magnitude | 13.47 (0.05) | 13.47 (0.05) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 12.96 (0.0009) | 12.93 (0.003) | ||
| BP magnitude | 12.83 (0.005) | |||
| RP magnitude | 13.09 (0.003) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.049 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.